Annexure 2 - National AIDS Control Organisation · 2.8a Is a known standard thermometric device...
Transcript of Annexure 2 - National AIDS Control Organisation · 2.8a Is a known standard thermometric device...
National Guidelines on Quality Management Systems in HIV Testing Laboratories129
Annexure 2.6A
EQAS Lab ID No.
ENZYME IMMUNOASSAY LABORATORY RESULTS SECOND
EIA FORM
NON REPORTING CODE
SECOND EIA
(To be filled for only reactive samples)
SECOND EIA RESULTS
Sample Interpretation
Code Absorbance 1 (Circle One)
R : Reactive ; NR : Nonreactive
REAGENTS
Manufacturer: ................................................
Lot # ................................................................
Kit Name: ........................................................
Date of expiry: .................................................
TEST CONTROLS
SECOND EIA ABSORBANCE
HIV-1 Positive Control
(Mean)
HIV-2 Positive Control
(Mean)
Negative Control
(Mean)
Cutoff Value
R NR
R
R
R
R
R
R
R
NR
NR
NR
NR
NR
NR
NR
FINAL EIA RESULTS
Sample Results
Code
Test Interpretation Codes:
P: Positive; I : Indeterminate ; N : Negative
...................................................... ......................................................
Signature of Technician Signature of Nodal Officer
Date: ............................... Date: ...............................
130National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.6A
National Guidelines on Quality Management Systems in HIV Testing Laboratories131
Annexure 2.6A
EQAS Lab ID No.
WESTERN BLOT FORM
(To be filled for only reactive samples)
NON REPORTING CODE
WESTERN BLOT RESULTS
Sample Interpretation
Code Enter Results Applicable as per the procedure (Circle One)
P: Positive; I : Indeterminate ; N : Negative
REAGENTS
Manufacturer: ................................................
Lot # ................................................................
Kit Name: ........................................................
Date of expiry: .................................................
TEST CONTROLS
WESTERN BLOT RESULTS
Positive Control ..............................................
Negative Control .............................................
I NP
I
I
I
I
I
I
I
N
N
N
N
N
N
N
P
P
P
P
P
P
P
FINAL WESTERN BLOT RESULTS
Sample Results
Code
Test Interpretation Codes:
P: Positive ; I : Indeterminate ; N : Negative
...................................................... ......................................................
Signature of Technician Signature of Nodal Officer
Date: ............................... Date: ...............................
132National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.6A
Results of Proficiency Panel of ICTC attached to SRL …...
SerialNo.
National Guidelines on Quality Management Systems in HIV Testing Laboratories133
Annexure 2.6b
CentreName
Centre Code
Results Proficiency
134National Guidelines on Quality Management Systems in HIV Testing Laboratories
Report format for reporting Results of Proficiency panel results of SRL from NRL
Annexure 2.6 c
Results of Proficiency Panel Remarks
PP Nos. SRL NAME
NRL NAME
National Guidelines on Quality Management Systems in HIV Testing Laboratories135
RECHECKING SPECIMEN ACCESSION(CHECKLIST FOR SRLs)
(Fill in duplicate, one copy to be retained by the testing centre and the other copy for the site)
1. Name of the Testing centre: …......................................................…………………………………………
2. Name of the site: …......................................................…………………………………………................
3. Date of specimen received: …......................................................…………………………………………
4. Total number of specimens received: …......................................................………………………….
5. No. of specimens rejected:
Hemolysed Lipaemic Insufficient
6. No. of vials leaking:
7. No. of vials with improper labeling
8. Cold chain maintained: Yes No
9. Details on the transport sheet: Complete Incomplete
10. Data forms matched with the specimens: Yes No
Verified by: ………………….......................… ………………….......................…
(Name) (Signature with Date)
Technical officer ………………….......................… ………………….......................…
(Name) (Signature with Date)
Laboratory In-charge ………………….......................… ………………….......................…
(Name) (Signature with Date)
Annexure 2.7 a
136National Guidelines on Quality Management Systems in HIV Testing Laboratories
ACCEPTED SPECIMEN REGISTER for SRL(Rechecking Specimens from ICTC)
Annexure 2.7 b
Signature of the receiver
SerialNumber
Date of Receipt
Name of the Testing Centre and Code No.
Specimen ID at Testing Centres
Specimen ID at SRL
Reactivity status of the specimens
Lab Supervisor: ..............................................................
Date: ..........................................
National Guidelines on Quality Management Systems in HIV Testing Laboratories
REJECTED SPECIMEN REGISTER for SRL(Rechecking Specimens from ICTC)
137
Annexure 2.7 c
Lab Supervisor: ..............................................................
Date: ..........................................
Sign of Person
Discarding
SerialNumber
Date of Receipt
Name of the Testing
Centre and Code No.
Rejected Due to
Rejected By (sign)
Specimen ID at Testing
Centres
Rejected on (date)
Date of Discard
138National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.8
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1.1 Is an organizational chart for laboratory personnel present?
1.2 Are job description/delegation of duties documentation present?
1.2a For each laboratory position is there a job description
1.3 Has the laboratory staff undergone Good Laboratory Practice (GLP) training?
1.3a Are training, education records for personnel kept on file?
1.4 Is documentation maintained, indicating the laboratory has assessed the competency of each employee to perform his or her assigned duties?
1.5 When the lab was last audited?
II Equipment
2.1 Is the equipment installed and placed as specified in the operator’s manual and uniquely labelled or marked?
2.2 Is all laboratory equipment listed on an inventory document?
2.3 Are there documented Preventive Maintenance and calibration plans for the laboratory’s equipment?
2.4 Are calibration materials stored, as required by the manufacturer?
2.4a Are calibration materials properly labeled, indicating content and calibration value?
2.5 Are refrigerators, freezers present?
2.5a Are Preventative Maintenance activities performed/documented?
2.5b Are temperature readings taken and documented? If “Yes”, report the frequency
2.5c Have tolerance limits been established/documented for temperature readings?
2.5d Is there documentation of corrective actions taken, in response to out-of range values?
National Guidelines on Quality Management Systems in HIV Testing Laboratories139
LABORATORY ASSESSMENT CHECKLIST
Date(s) of Assessment: ...................................
GENERAL INFORMATION
Laboratory Name: ..................................................................................................................
Address: ..................................................................................................................
Telephone# ..................................................................................................................
Fax# ..................................................................................................................
Email: ..................................................................................................................
Laboratory In charge: ..................................................................................................................
Laboratory staff: ..................................................................................................................
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
140National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
2.6 Are centrifuges present?
2.6a Are Preventative Maintenance activities performed/documented?
2.6b Is calibration performed/documented for each centrifuge? report the frequency
2.7 Are pipettes present?
2.7a Are calibration procedures performed for all pipettes? If “Yes”, report the frequency
2.8 Are thermometers present?
2.8a Is a known standard thermometric device available (NABL certified)?
2.8b Have all non-certified thermometers been tested against a standard device?
2.9 Is flow cytometry instrumentation present? If “Yes”, please report the manufacturer/model
2.9a Are Preventative Maintenance activities performed/documented?
2.9b Are calibration procedures performed, as described by the manufacturer?
2.10 Are balances present?
2.10a Are calibration procedures performed, as described by the manufacturer?
2.11 Is ELISA testing equipment present?
2.11a Are Preventative Maintenance activities performed/documented?
2.11b Are calibration procedures performed, as described by the manufacturer?
2.12 Supervisor or designee has reviewed and signed maintenance, repair, and calibration records monthly?
2.13 Are there records to verify that a back-up generator system is in place and operational?
2.14 Have there been any recent changes in the facilities or the equipment? (Major repairs, new equipment, etc.)
2.15 Are there back up procedures for equipment failure.
III Test Procedures
3.1 A. Is there a list of all testing activities performed in the laboratory?
3.2 Are there SOPs for each
3.3 Is there a written document control plan that addresses topics such as procedural relevance, authorization process, annual reviews, and discontinuation of procedures?
3.3a Are the laboratory’s SOPs reviewed for accuracy and relevance on an annual basis?
3.3b Does the laboratory have a system of documenting that all personnel are knowledgeable of the contents of the laboratory’s SOPs?
National Guidelines on Quality Management Systems in HIV Testing Laboratories141
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
3.3c Are the laboratory’s SOPs available in the work area?
3.3d Are old versions (retired) of SOPs identified as retired and archived in the laboratory?
3.4 Is there a list of assay turnaround times present?
3.5 Does the laboratory have a policy for employees to communicate concerns, regarding testing quality or laboratory safety to management?
IV Quality Control
4.1 Is there a written Quality Control program that clearly defines procedures for monitoring analytic performance, including establishment of tolerance limits, number and frequency of control tests, corrective action based on Quality Control data, and related information?
4.2 Are logs present, documenting control results assayed with each test, as described in the specific assay procedure?
4.2a Does the technologist performing the QC initial the logs?
4.3 Are appropriate charts utilized to document QC data (i.e. Levey Jennings charts)?
4.3a Has a supervisor/designee reviewed and signed Levey Jennings charts? (If “Yes”, note the frequency)
4.4 Has a supervisor/designee reviewed and signed all QC logs? (If “Yes”, note the frequency
4.4a Are all QC documents available for the past two years?
4.5 For quantitative tests, are control materials at more than one level used?
4.6 For qualitative tests, is a positive and negative control included with each run?
4.7 Quality Control Failure/Corrective Action
4.7a Is there a Corrective Action Log present, documenting resolution of QC failures?
4.7b Has a supervisor/designee reviewed and signed the Corrective Action Log? If “Yes”, note the frequency
4.8 QC Materials
4.8a Are all Quality Control materials dated within the manufacturer’s assigned expiration dates?
4.8b Are all Quality Control materials properly stored, as required by the manufacturer?
4.8c If calibrators are used as controls, are they from a different lot number than those used to calibrate the method?
V Reagent/Testing Kits
5.1 Are all reagents/testing kits within the manufacturer’s assigned expiration dates?
5.2 Are all reagents/testing kits properly stored, as described by the manufacturer?
142National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
5.3 Are all reagents/solutions properly labeled, to indicate identity, lot number, storage requirement, date prepared/reconstituted, and expiration date?
5.4 Is there an inventory control system in operation?
5.5 Is there a system for forecasting needs for supplies and reagents?
5.6 Is first expiry first out practiced?
VI Records and Reports
6.1 Are copies of network lab-specific manuals, protocols, and appendices available?
6.2 Specimen Tracking Forms/Requisitions Are forms readily available for at least two years?
6.2a Are the forms retrievable for the entire protocol?
6.3 Is specimen chain of custody adequately documented?
6.4 Is there a list of places laboratory results are reported?
6.5 Where appropriate, are analytic results reported with accompanying reference intervals?
6.6 Do the laboratory reports identify the laboratory performing the testing?
6.7 Does the laboratory archive result data (result printouts, etc.)? If “Yes” how long data is archived.
6.8 Are the archived records accessible to only authorized personnel?
VII. Physical Facilities
7.1 Is there adequate, conveniently located space so the quality of work and safety of personnel are not compromised? (Is the client area and testing area distinctly separated?)
7.2 Are the ventilation and humidity adequately controlled in all Areas?
7.3 Are ambient room temperature readings taken and documented?
7.3a Have tolerance limits been established/documented for ambient room temperature?
VIII. Specimen Transport and Management
8.1 Is a manual containing instructions for specimen collection in the laboratory and areas dedicated for specimen collection?
8.2 Is there a documented policy/procedure for identifying and assessing the quality of specimens received in the laboratory?
8.3 Specimen Transport
8.3a Is there a policy/procedure in place for transporting specimens (transported in a sturdy, non-breakable, closable container labeled “biohazard”)?
8.3b Does the document address transport within the facility?
8.3c Does the document address transportation between off-site clinics and the laboratory?
National Guidelines on Quality Management Systems in HIV Testing Laboratories143
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
IX Personnel Safety
9.1 Safety-Related Incidents
9.1a Is there documentation of all safety-related incidents signed monthly by laboratory director or designee?
9.1b Has an evaluation of these incidents been incorporated into the laboratory’s Quality Management program, to avoid recurrence?
9.2 Are laboratory personnel offered appropriate immunization?
9.3 Are post exposure prophylaxis policies and procedures posted and implemented after possible and known exposure?
9.4 Material Safety Data Sheets (MSDS)
9.4a Are MSDS on file?
9.4b Are MSDS readily available to all laboratory personnel?
9.5 Is there documented participation of laboratory personnel in a safety training program? If “Yes”, list that provides the training and what is the frequency of the training?
9.6 Safety Policies
9.6a Is a written Standard Precautions Policy available?
9.6b Is a written Chemical Hygiene/Hazardous Materials Plan available?
9.6c Is there a written policy for the handling and disposal of bio hazardous materials and regulated medical waste?
9.6d Are safety policies and procedures readily available to all staff?
9.6e Is there evidence of at least annual review of safety policies and procedures by the laboratory director/designee?
9.7 Is safety equipment such as eyewashes, safety showers, fire extinguishers, fire blankets, and sharps containers present in the laboratory
9.8 Personal Protective Equipment (PPE)
9.8a Is Personal Protective Equipment (gloves, gowns, masks, eye protectors, etc.) available to and utilized by laboratory staff?
9.8b Is Personal Protective Equipment maintained in a sanitary and reliable condition in all technical work areas, in which blood and body substances are handled, and in circumstances during which exposure is likely to occur?
X Quality Assurance
10.1 Does the laboratory have a Quality Assurance/Quality Management program?
10.2 Does the program follow a documented operational plan, designed to monitor, assess, and (when indicated) correct problems identified in pre-analytic, analytic, and post-analytic systems as well as general laboratory systems?
10.3 Are key indicators of quality monitored and evaluated, to detect problems and opportunities for improvement?
10.4 Are appropriate corrective action and/or preventive actions taken, when opportunities for improvement are identified?
144National Guidelines on Quality Management Systems in HIV Testing Laboratories
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
10.5 Are specimens maintained at appropriate conditions (e.g. temperature), until testing can be performed?
10.6 Are reagents prepared, in accordance with the SOP?
10.7 Are reagents maintained at appropriate conditions, until testing can be performed?
10.8 Are tubes/plates labeled appropriately with sufficient identification, to prevent mix-up?
10.9 Are appropriate conditions maintained to perform the assay
10.10 Are reagents and specimens added in the appropriate order, and at appropriate times?
10.11 Are appropriate controls (positive and negative) available and tested?
10.12 Are specimens maintained under appropriate conditions until analysis?
10.13 Are appropriate controls and, when applicable, calibrators available and tested?
10.14 Are specimens analyzed, as defined by the SOP?
10.15 Are results verified by alternate personnel? And are results reported as defined in the SOP?
XI Documents
11.1 Is there a standard format for written procedures?
11.2 Is there an approval system for written procedures?
11.3 How are revised procedures handled?
11.4 Does the quality assurance plan include documentation of problems and corrective action taken?
11.5 Is there a written quality control plan for the laboratory that includes control material to be used and frequency of use?
11.6 Are there guidelines for collection, labeling, preservation and handling?
XII EQAS
12.1 Does the laboratory participate in proficiency programs for each of the analytes tested?
Which programs? Frequency?
12.2 How is the proficiency specimens handled?
12.3 Who tests the proficiency specimens?
12.4 Who reviews the proficiency results?
12.5 What action is taken if results are not within guidelines given?
XIII Personnel
13.1 Are all posts filled. If not which and why
13.2 Are all personnel files/records maintained
13.3 How are new personnel trained? Records?
13.4 How are existing personnel trained on new equipment or procedures?
13.5 Are there CE/refresher trainings for staff
National Guidelines on Quality Management Systems in HIV Testing Laboratories145
Annexure 2.9
RemarksS No. Organization and Personnel Yes No
13.6 How is the technical competency of the laboratory staff monitored?
13.7 Are department meetings held? Frequency? Who chairs? Records?
XIV Specimen Management
14.1 What procedures are in place to prevent mislabeling or mishandling?
14.2 Is there a unique identification for each patient specimen?
14.3 Are there guidelines for acceptation and rejection of specimens?
14.4 How is a rejected specimen handled?
14.5 How are the specimens checked for correct labeling?
14.6 How the specimens are stored pending testing?
14.6a Are specimens stored in a manner that assures specimen integrity prior to testing?
14.7 What checks are used to make sure a test request is not missed? Ensure ordered test is performed
14.8 Is there a policy for retaining tested specimens?
14.9 How are specimens handled for long term storage?
Summary of Assessment Findings: ...................................................................................................................................................................................................................................................
Noted Challenges: ............................................................................................................................................................................................................................................................................
Noted Commendations: ...................................................................................................................................................................................................................................................................
Recommendations: .........................................................................................................................................................................................................................................................................
Action Plan with Responsible person/s and Time Frame:
1. ................................................................................................................................................2. ................................................................................................................................................3. ................................................................................................................................................
Name, Designation and Signature of Assessor: ................................................................................................................................................................................................................................
146National Guidelines on Quality Management Systems in HIV Testing Laboratories
QSP on Personnel Management:The following headings are suggested:
0 Introduction
0.1 Scope and purpose
0.2 Responsibilities
0.3 Background
0.4 References
0.5 Definitions
0.6 Related documents (supporting documents)
1.0 Procedure
1.1 Recruitment and Selection
1.2 Job Descriptions (Roles and Responsibilities)
1.3 Induction / Orientation of New Personnel to the Laboratory
1.4 Training
1.5 Assessment of Competence
1.6 Continuing education and professional development
1.7 Performance Evaluation/Review
1.8 Meetings and Communication
1.9 Ethics
2.0 Personnel records
3.0 Attachments/Annexures
4.0 Document and Change History
Annexure 3.1
Version no.:XYZ Laboratory Quality System Procedure
(Level II document) Document no.: LAB.5.1
Personnel Management -LAB.5.1 Effective date: Page: 1 of _
Authority for issue :
National Guidelines on Quality Management Systems in HIV Testing Laboratories147
Example of an SOP “Writing an SOP”
1.0 PURPOSE AND SCOPE
This Procedure details the method to be followed when developing, reviewing, approving,
authorizing and issuing Standard Operating Procedures (SOPs) within the various sections of
laboratory which is to operate in compliance with the Principles of Good Clinical Laboratory
Practice (GCLP).
This Standard Operating Procedure (SOP) details the method to be followed when preparing,
distributing, using, and reviewing, all XYZ Laboratory SOPs.
This sop is applicable to all XYZ laboratory specific operating procedures.
2.0 DIFINITIONS AND ABBREVIATIONS
(International Conference on Harmonization –Good Clinical Practice, ICH-GCP)
A Standard Operating Procedure is a detailed, written instruction to achieve uniformity of the
performance of a specific routine function. These documents are issued to cover standard
laboratory practice and also to cover routine procedures on given specific projects.
3.0 RESPONSIBILITY
3.1 It is the responsibility of the Author of the SOP to prepare a clear and concise procedure,
which complies with the requirements of GCLP. The SOP should fully describe the roles and
responsibilities of individuals, materials and methods to be used and a description of data
recording and data retention requirements.
3.2 It is the responsibility of the laboratory staff to be aware of and adhere to the contents of
applicable SOPs. It is the responsibility of XYZ Lab staff to bring the following to the attention of
the Lab Director/Quality Manager:
3.2.1 Procedures for which a Standard Operating Procedure is required
3.2.2 Existing SOPs in need of revision
3.2.3 Any deviation from SOPs
3.2.4 Feedback regarding current SOPs.
3.3 The responsibilities of the Lab Director/Quality Manager include:
3.3.1 Ensuring that SOPs are prepared to cover the work, equipment and procedures of the
Department
Annexure 3.2
Version no.:Logo Name of the Laboratory:
SOP no.: Title: SOP WRITING Page: 1 of 4
Effective Date: Issuing authority:
148National Guidelines on Quality Management Systems in HIV Testing Laboratories
3.3.2 SOP's are regularly reviewed, updated when necessary and re-issued in a timely manner.
3.3.3 Distribution of hard copies of the SOPs to the laboratory staff performing the procedures
and ensure that SOPs are immediately available in the areas where the activity covered by
the SOP is performed.
3.3.4 Ensuring that SOPs are followed once issued.
3.3.5 Monitoring SOP deviation
3.3.6 Ensuring historical file of all SOPs is held in the Archive.
4.0 PROCEDURE
4.1 Format and Numbering
4.1.1 Each page of SOP should have a Header and footer as shown in this SOP
4.1.2 The version number will be written on the SOP header and commence at 1 for the original
issue of an SOP and will increase by point one for each subsequent re-issue.
4.1.3 A unique identification number will be allocated to each new SOP. This will be alphanumeric
and comprise of a combination of the QSE/Clause acronym and the SOP number.
4.1.4 The SOP number will be assigned by referring to the SOP index page. The same Number
will be continued for SOPs that have been revised. New SOPs will be assigned the next
number in the index sequence.
4.1.5 To facilitate the maintenance of the historical file of SOPs, a number must not be re-
allocated to an SOP with a different title, even if the original SOP is withdrawn.
4.2 Content
4.2.1 The initial part of the SOP text will give an introduction, with any relevant background
information and should include reference to the scope of the SOP.
4.2.2 Subsequent sections of the SOP will detail the definition (if applicable), and procedures.
4.2.3 Responsibilities of lab staff conducting the procedures will be identified by job function.
4.2.4 The SOP if necessary should include procedural checks or quality controls for the activity in
question.
4.2.5 Procedures will be described in sufficient detail to ensure reproducibility of performance
by any suitable trained member of staff, but should avoid being as specific as to become
restrictive.
4.2.6 Once prepared, the draft SOP will be distributed for comments to the Lab -In-Charge and
any others as appropriate.
4.3 Approval
4.3.1 When all valid comments have been incorporated, the SOP will become a final draft.
4.3.2 The individual responsible for preparation of the SOP will sign and date the footer of the
final draft of a paper copy of the SOP and send it to the Lab-In Charge for review.
4.3.3 After reviewing the final draft of SOP, the Lab-In-Charge/Designee will approve the SOP
and then the Director/ Designee will sign the footer.
4.3.4 The SOP will now be final.
4.4 Distribution of SOPs
4.4.1 All SOPs are confidential documents and authorization to distribute SOPs to external
Annexure 3.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories149
parties must be obtained in written permission from the Lab Director.
4.4.2 SOPs will be distributed in different sections of laboratory.
4.4.3 SOP Document control log will be maintained (Appendix B).
4.4.4 The Master copy of SOP Control Log will be maintained by the Quality Manager.
4.4.5 The Control logs of the relevant SOPs of each department will also be maintained by the
Quality Manager with a copy in each department
4.5 Access to SOP.
4.5.1 Lab -In-Charge, Q Manager and their staff will have access to lab SOPs in both paper and
electronic format. So that SOPs are immediately available in the areas where the activity
covered by the SOP is performed.
4.5.2 Lab staff should ensure that the version of the SOP they are using is the most up-to-date
version before use.
4.6 SOP Training and Adherence
All staff members should read all the concerned SOPs and should be trained in using them.
SOP training log (Appendix C) should be maintained for the same. All the staff members
should strictly follow the SOPs while performing the concerned procedures.
4.7 Deviation to SOPs
4.7.1 Each staff member is responsible for promptly reporting to the Lab -In-Charge any areas
where deviation from the SOPs is occurring or likely to occur.
4.7.2 If a situation is encountered that necessitates a (significant) deviation from an SOP, the
details must be documented and reported to the Lab -In-Charge with a full explanation
including the reason for the deviation, the action taken, and the outcome. After being
reviewed this document will be retained in the archive.
4.8 Archive
4.8.1 The Master Copy of the SOP, the one with the original signatures, is the copy, which
include a full and complete set of SOPs covering all aspects of work should be sent to the
Archive. It is this copy, which is retained as the historical copy of all SOPs.
4.8.2 A historical file of all versions of SOPs must be archived in a secure facility. Historical
archived SOPs must never be destroyed.
4.8.3 The QM will make sure that all the relevant copies of the archived SOPs will be removed
from the respective departments before issuing an upgraded version of the SOP.
4.9 SOP Review
4.9.1 All existing SOP’s will be reviewed annually in the month of ________. To determine the
continued relevance of the stated procedures. This interval will be annually and any
changes/additions required before the annual review will be implemented as
amendments/addendum to the SOPs and will be documented in the SOP Amendment
sheet (Appendix D)
4.9.2 Comments from applicable lab staff will be sought as appropriate during review. The
outcome of an SOP review will result in one of three possible actions:
The SOP does not require any change.
Annexure 3.2
150National Guidelines on Quality Management Systems in HIV Testing Laboratories
The SOP requires changing and is to be re-issued.
The SOP is redundant and can be withdrawn.
4.9.3 Following the review if no change has taken place in the SOP then the annual review page
(Appendix E) in the SOP will be signed by the Approver of the SOP and copies of the log
distributed to the appropriate work areas.
4.9.4 If following the review it is decided to update an SOP, the appropriate changes which will
include the amendments/addendums will be incorporated and the SOP re-issued
following the same approval process as defined earlier. The SOP version number will be
updated and increased by one point one to reflect the re-issue.
4.9.5 If following the review it is decided that the SOP is no longer required then it should be
withdrawn from issue.
4.9.6 The Contents List for the SOP index will be updated to reflect this change.
5. PROCEDURE FOR AMENDMENT:
5.5.1 The amendment will be made by the authorized person (author of the SOP /Head of the
department/designee).It will be made on the electronic copy of the amendment sheet.
The authorized person will sign the sheet. Xerox copies will be distributed to the relevant
work areas. The original copy will be retained with the original SOP with the QM.
5.5.2 If there are more than one amendment the version of the amendment sheet will increase
by point one only.
5.5.3 Along with the amendment sheet a new page incorporating the changes should be added
to the SOP. A line should be drawn across the original page and CANCELLED should be
written on it.
5.5.4 The new page along with the amendment should be stapled on the cancelled page.
5.5.5 This amendments/addendum will be incorporated in the next version of SOP during the
annual review.
5.5.5 Please ensure the documentation of the reading and understanding of the amendment
sheet by resigning on the SOP Training log.
6 REFERENCES
ISO 15189:2012
NABL 112
7 APPENDICES AND FORMS
Appendix A: SOP Template
Appendix B: SOP Training Log
Appendix C: Annual Review of SOP
Appendix D: SOP Control Log
Appendix E: SOP Amendment sheet
8 VALIDITY STATEMENT
Annexure 3.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories151
SOP TEMPLATE
1.0 PURPOSE AND SCOPE of EXAMINATION
2.0 DEFINITIONS AND ABBREVIATIONS
3.0 RESPONSIBILITY
4.0 PROCEDURE
4.1 Principle and Method of the Procedure used for Examination
4.2 Patient Preparation
4.3 Primary Specimen Collection; Specimen Rejection Criteria
4.4 Type of Specimen; Container and Additives; Transportation; Stability and Temperature
4.5 Required Equipment; Name, location
4.6 Required Reagents
4.7 Environmental and Safety Controls
4.8 Calibration procedures (Metrological Traceability)
4.9 Quality Control procedures
4.10 Procedural Steps
4.11 Principle of procedure for calculating results including where relevant the UM of
measured quantity values
4.12 Performance Characteristics
4.12.1 Accuracy
4.12.2 Precision
4.12.3 Analytical Measurement Range (AMR)
4.12.4 Clinical Reportable Range (CRR)
4.12.5 Sensitivity
4.12.6 Specificity
4.12.7 Interference
4.13 Result and Laboratory Clinical Interpretation
4.14 Limitations and Potential Sources of Variation
4.15 Biological Reference Intervals or Clinical decision values
5.0 REFERENCES
6.0 APPENDICES AND RECORDING FORMS
7.0 VALIDITY STATEMENT
Appendix-A
Name and Logo of Health facility and laboratory
SOP NO.: TITLE VERSION NO
Effective Date: Page: 1 of
Issuing authority:
SOP TRAINING LOG
Department: ................................................................................................................................
SOP: .............................................................................................................................................
152National Guidelines on Quality Management Systems in HIV Testing Laboratories
Appendix B
Date Name Signature
National Guidelines on Quality Management Systems in HIV Testing Laboratories153
Appendix C
ANNUAL REVIEW
XYZ Laboratory
SOP # Name: .........................................................
ANNUAL REVIEW
Signature/title Date
REVIEWED
REVIEWED
REVIEWED
REVIEWED
REVIEWED
.........................................................
Prepared by Date Adopted Supersedes Procedure #
154National Guidelines on Quality Management Systems in HIV Testing Laboratories
DOCUMENT (SOP) CONTROL LOG
Appendix D
Distributedto
Lab SOP No.
Reviewed /Revision
effective date
Issuingauthority
Current Version
OriginalEffective/
Date
No. of copiesTitle
SOP AMENDMENT SHEET
Signature ofApproverS. No. Reason
Date of Amendment
Amendment madeSignature of
Author
National Guidelines on Quality Management Systems in HIV Testing Laboratories155
Appendix E
PageNo.
1
2
3
4
5
6
7
8
9
10
156National Guidelines on Quality Management Systems in HIV Testing Laboratories
REFRIGERATORS AND FREEZERS(Temperature Controlled Units TCU)
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Refrigerators store reagents, kits and quality control materials to ensure shelf life and stability.
Freezers store specimens collected for EQA purposes prior to transport to a reference
laboratory. Quality control specimens may also be stored in a freezer. The following general
advice may be helpful for maintenance:
Refrigerator / Freezers must be placed so that sufficient air can pass the condenser (at the
back of the refrigerator) for exchange of heat and also to facilitate cleaning of the condenser.
The TCU must be connected directly to the electrical outlet. It must never be connected to an
overloaded electrical outlet or one with voltage deficiencies. The use of electrical extensions
must be avoided.
Installing the unit under direct sunlight or near a heat source such as radiators or heaters is to
be avoided. It must be remembered that the greater the difference in temperature between
the environment and the condenser, the more efficient will be the heat transference.
The door must seal perfectly to prevent warm outside air from entering the cool chamber.
The inside and outside of the TCU must be periodically cleaned.
Do not store food items or beverages in laboratory refrigerator or freezer
Refrigerator/Freezer Routine Maintenance
Frequency: Every quarter
Cleaning the interior: Verify that the refrigerator’s inner shelves are clean. Before cleaning, any
material which can interfere must be removed from the refrigerator. Move the empty shelves
towards the front. Dampen a piece of cloth with a mild detergent and apply by rubbing surfaces
gently. Dry and place in their original position. Avoid using steel wool or other abrasive materials
for cleaning the shelves.
The door gasket verification: The door gasket is a component which must stay in a good
condition for the unit to work correctly. To verify its condition, one must proceed according to
the following steps: I). Open the door. Ii). Insert a strip of paper of about 5 cm in width between
the door gasket and the edge of the refrigerator’s body where the gasket is housed. 3. Close the
door. 4. Pull the paper gently from the exterior. The paper must put up resistance when being
moved outwards. If the paper can be moved without resistance, the gasket must be substituted.
Perform this procedure on 10 cm of gasket at a time around the entire gasket housing.
A door gasket in bad condition produces various problems in the functioning of cooling units: (I).
it allows humidity to enter which condenses and freezes inside the evaporator.(ii) it increases
the time needed by the compressor for maintaining the selected temperature.(iii) it affects the
Annexure 4.1
National Guidelines on Quality Management Systems in HIV Testing Laboratories157
storage temperature (iv) it increases the operational costs. Frequency: Every six months
Cleaning the Condenser: The electrical feed cable must be is disconnected. Verify the position
of the condenser. Remove the dust and grime deposited on the surface of the condenser. If the
condenser is not clean, this will interfere with the heat transference process and the refrigerator
could “heat” or function at temperatures different than selected.
Defrosting: Many modern freezers have automatic cycles for defrosting the evaporator in order
to avoid frost accumulation. Some models do not have defrosting cycles and the process is done
manually on a scheduled basis. Defrosting must be done through the night during which time
the contents must be transferred to another refrigerator.
Annexure 4.1
158National Guidelines on Quality Management Systems in HIV Testing Laboratories
Incubators}
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The incubator should have a fan to maintain uniform temperature.
Incubators are used for bacterial culture by laboratories working in microbiology.
The incubator must maintain a constant temperature of 37ºC± 1ºC.
Temperature should be daily recorded in incubators.
Like all laboratory instruments, incubators must be cleaned and disinfected routinely at
short intervals (at least every fortnight) and after spilling of infectious material.
The actual temperature must correspond to the thermometer control when te instrument is
used.
Calibration: use a pre-calibrated thermometer to ensure accuracy of temperature checks.
Temperature controlled equipment such as refrigerators, freezers, incubators etc. influence
integrity of specimens and reagents and thus likelihood of consistently producing accurate
results over time. Their temperature must be monitored by using temperature monitoring
units (TMU) /Temperature measuring devices, including thermometers and electronic
monitoring units. The TMU must be calibrated since any thermometer indicating a certain
temperature, does not ensure correctness..
The comparison method is recommended for the in-house calibration of thermometers: A
certified traceably calibrated reference thermometer and the thermometer/thermocouple to
be calibrated are immersed in a suitable, stirred liquid bath (organic liquid – glycerin
/ethanol, deionized/distilled water,), and the readings of the thermometers are compared. The
choice of calibration temperatures should cover the range which is used in the temperature
measurement. A minimum of four temperature readings are taken at specified intervals for
each position (recommended time intervals are 30, 45, 60 and 75 minutes). The temperature
should be monitored in various locations to include top, middle and bottom shelves. It is
important to ensure that the sensing head of the thermometer to be calibrated and the
actuating element of the reference thermometer are at the same temperature. A correction
factor may be used to compensate for any difference between readings of both thermometers if
applicable.
A label denoting, the serial number of thermometer, date of calibration and correction factor if
necessary is placed around the top of the corresponding thermometer. The calibration interval
of TMU is at a minimum every 6 months.
Daily function checks:
A one page form may be affixed to all temperature controlled equipment. The recording format
must indicate the unique ID of the TCU and location, TMU and calibration date and correction
factor if any, the time, day, month and year, the acceptable temperature range and the identity
Annexure 4.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories159
of personnel performing the activity and supervising the activity. The temperature is monitored
with calibrated recording devices with the doors shut. Each day and sometimes more than once
per day, a staff member should check the temperature of the equipment and record the results
in the form in the “current” column in the numbered row corresponding to the date. At the end
of the month the form is replaced. The completed form is stored as a quality record
Criteria for acceptance: Temperature controlled equipment should operate between ranges of
temperatures specified for equipment, specimens and reagents. Setting the limits and
specifications of temperature for refrigerators and freezers involves understanding the
necessary operating temperatures and maintaining them as a set of requirement for the
operating ranges of the refrigerator or freezer.
Recommended temperature range for different equipment and materials:
Annexure 4.2
Categories of stored material Temperature Range
O- 70 C freezer
OFrozen plasma PCR Cooler than -65 CO
Frozen lymphocytes for PCR Cooler than -65 CO- 20 C freezer
OFrozen plasma for panel Cooler than -15 CO
Lab specimens being stored Cooler than -15 CO4 C Refrigerator (self-contained and walk in type)
O O Lab specimens to be or being tested 2 to 8 C
O O Lab reagents and Test kits 2 to 8 C
IncubatorsO O OSet point = 37 C 36 to 38 CO O O
Set point = 40 C 39 to 41 CO O OSet point = 45 C 44 to 46 C
160National Guidelines on Quality Management Systems in HIV Testing Laboratories
Centrifuge
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A centrifuge is a laboratory machine driven by a motor which spins liquid specimens at high
speed. It works on the sedimentation principle, where the centripetal acceleration is used to
separate substances of greater and lesser density. It comprises of a rotor that holds the tubes
and rotates during operation. The rotor contains two, four, six, or many more numbered wells
within which the specimens may be placed. Separation activity is a function of both centrifugal
force and timing. Proper balance, lubrication and rotor function are essential for proper
centrifugation to occur.
The major aspects in maintenance of different types of centrifuges used in laboratory routine
are as follows:
The centrifuges must be positioned exactly horizontally to prevent the instrument moving
away from its place when out of balance during centrifugation. Check if the rubber buffers
are in the buckets.
Avoid spilling liquids on control keys. The keys must be operated with the fingertips: The
operator should avoid using fingernails, as this can result in the perforation of their
protective membrane.
It is critically important that the centrifuge load is balanced at all times. Therefore, buckets
loaded in matched pans and tubes should be arranged so that balanced tubes oppose each
other in the centrifuge head. This is necessary to maintain the same forces of gravity in the
opposite positions of the tubes. This arrangement involves placing a “dummy”, i.e., a tube
filled with the appropriate volume of water corresponding to the weight of the volume, in
the oppositely positioned test tube, when an odd number of specimens must be
centrifuged.
Always operate with the lids closed – operating a centrifuge without the lid closed poses an
unnecessary safety hazard.
Keep lids on tubes when spinning – do not take the tops off the tubes before spinning. Doing
so will cause splashing and creating of aerosols from potentially infectious material
Turn the speed control slowly up and down.
Do not open the lid until the rotor has come to a complete stop
Check for vibration – There may be several reasons why a centrifuge vibrates.
Check for corrosion and clean and repaint if necessary.
Centrifuge: Routine Maintenance
When cleaning the centrifuge: Clean interior daily with soap and water, wipe with a
disinfectant Wipe spills using 0.1% aqueous sodium hypochlorite solution
After use, the buckets should be inverted to drain dry.
After cleaning, run the centrifuge at varying rpms to check the braking mechanism and
ensure a smooth gradual stop.
When noticing unusual noises or vibrations: stop operation of the centrifuge Follow
manufacturer’s recommendation on activation and release of brakes. Determine the cause
Annexure 4.3
National Guidelines on Quality Management Systems in HIV Testing Laboratories161
Annexure 4.3
of the noise or vibration. Refer to the owner’s manual for possible causes aside from
improper balancing. Correct immediately to prevent severe damage to the centrifuge or
injury to the worker.
Inspect for evidence of wear, cracks in fitting, corrosion, uneven wear, or signs of fatigue by
checking: Head, shaft head and coupling, Rotor, Brushes and bearings, Power supply, Motor
and lubricant, Gaskets, seals, mounts and lubricants and replace if necessary.
Brushes need to be inspected every 3-6 months and replaced according to manufacturer
specifications.
Centrifuge Safety
Follow these safety rules when operating a centrifuge:
Increase the speed slowly until optimal speed is reached
Disconnect the centrifuge from the electrical source before preventive maintenance,
cleaning or inspection
Take caution when removing spills and broken specimen tubes after a run
If tubes are broken, keep the door closed and allow to sit undisturbed for 30 minutes before
attempting to clean
Use tweezers to remove broken glass
Simply turning the power off does not remove power to the centrifuge.
Calibration verification of rotational speed and time
Frequency: should be performed at a minimum annually.
Examine the exactitude of the time controls. Use a calibrated timer. The time measured must
not vary by more than ± 10 % of the programmed time. Verify the actual rotation speed against
the selected one using a normal load. The testing is done with a calibrated tachometer or a
photo tachometer. If the hatch is not transparent, the procedure indicated by the manufacturer
must be followed.
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162National Guidelines on Quality Management Systems in HIV Testing Laboratories
Pipettes
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Types of Pipettes
(I) Precision pipettes (not disposable): They dispense precise and accurate volume. Always use
disposable, single-use, pipette tip
(ii) Graduated plastic bulb pipettes (Disposable): They dispense approximate volume but are
easy to use
Use and Care of Pipettes
Select the appropriate pipette for the volume required
Ensure that the pipette, tips, and specimen are at the same temperature. When pipetting
hot or cold material, the tip’s temperature should be equalized to that of the solution to
prevent contraction or expansion of specimen.
Firmly attach tip
Hold the pipette vertically when aspirating (10 deg max from vertical)
Use the same speed for both the intake and delivery of all specimens, and use smooth
depression and release of the plunger knob. Never allow the plunger to snap back.
Always depress the plunger knob to the proper stop before insertion of the tip into the
solution try to insert the tip to approximately the same depth in the specimen each time,
never going deeper than 3 mm.
Place tip just below the specimen
Avoid air bubbles
After each use, the mechanical pipettes must be kept in an upright position and thoroughly
cleaned at periodic intervals.
Discard contaminated tips in appropriate sharps container after completion of task
The practice of washing and reusing disposable tips is to be discouraged, as any cleaning
procedure will change the “wettability” of the plastic. In addition, drying even to only slightly
elevated temperatures may be distorting the tip. This will prevent a good pneumatic seal
with the pipette body and change the volume of liquid to be pipetted.
Routine Maintenance of Pipettes:
Inspection:
Frequency: Daily
Pipettes require frequent inspection in order to detect abnormal wear and tear or damage
and/or to verify that they are in good working condition. Inspection must cover the following
aspects:
Verify the integrity and adjustment of the mechanisms. These must move smoothly. The
piston must move smoothly.
Confirm that the tip holder is not displaying distortions or signs of being worn out, as it is
essential for the exactitude of measurements. Verify the adjustment of the tips.
Annexure 4.4
National Guidelines on Quality Management Systems in HIV Testing Laboratories163
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Put on a tip and fill it with distilled water. The pipette must not show any leak.
Cleaning and decontamination
Every day, verify that the pipette is clean. If dirt is detected, it must be cleaned using a
suitable solvent or a mild detergent solution. Check the manufacturer’s recommendation
regarding the compatibility of the pipette with solvents to select the appropriate one. In the
HIV laboratory use 0.1% sodium hypochlorite freshly prepared solution
Sterilize the pipette according to the manufacturer’s indications. Some pipettes can be
sterilized in an autoclave using a cycle of 121 °C for approximately 20 minutes. Some will
need to be disassembled for the vapor to come into contact with their internal components.
Some manufacturers recommend sterilizing the pipette using a 60 % isopropanol solution
and washing the components with distilled water, drying and assembling.
If a pipette has been used with harmful substances, it is the responsibility of the user to
ensure that it is completely decontaminated before it is used in other procedures or
removed from the laboratory.
Servicing of pipettes by an external agency:
Frequency: six monthly
A pipette used daily must be submitted to the following procedures for guaranteeing its correct
functioning:
Disassemble the pipette. Follow the procedure described by the manufacturer in the user
manual
Clean the O rings, the plunger and the inside of the cylinder before lubricating. If the internal
components were contaminated accidentally, all the surfaces should be cleaned with a mild
detergent and then with distilled water. If the O rings or gaskets need to be changed,
replacement parts with the same characteristics as the original should be used.
Lubricate the plunger and piston with silicone grease especially developed for pipettes.
Always use the lubricant recommended by the manufacturer. Remove any excessive
lubricant with absorbent paper.
Assemble following the reverse process to that of disassembly.
Calibrate the pipette before use.
Single channel and multichannel pipettes
To adhere to quality control measure, mechanical pipettes must be calibrated to ensure
accuracy and precision.
Accuracy relates to the closeness with which the dispensed volume approximates the volume
set on the pipette (how close is the volume delivered to volume expected).
Precision demonstrates the reproducibly of repetitive measurement and is usually reported as
the standard deviation and / or the coefficient of variation.
Reliability is a general term referring to the combined accuracy and precision. A pipette is highly
Annexure 4.4
164National Guidelines on Quality Management Systems in HIV Testing Laboratories
reliable if it is both accurate and precise.
Calibration of pipettes
Pipettes are precise and important basic instruments of the laboratory, and as such, need to be
calibrated at least every 3-6 months.
Calibration using gravimetric method: The procedure is based on measuring the volume of a
water specimen from the mass of water dispensed by the pipette and dividing that mass by the
water density. In practice, a group of measurements is done, to which corrections are applied to
compensate for any variation due to nonstandard temperature and atmospheric pressure and
to any significant evaporation during test.
To calibrate a pipette using the gravimetric method, a high precision analytic balance and
distilled water are needed. It is to be noted that, 1 ml of distilled water weights 1 g, but this
measurement is dependent on temperature. Because the volume of a particular piece of
glassware varies with temperature calibration procedures must be conducted at a particular
temperature, between 20oC and 25oC.
The pipette must be adjusted (calibrated) so that the dial on the pipette that indicates the
volume dispensed is in accordance with the weight of the fluid dispensed by the pipette. Using
distilled water and setting the temperature between 20-25oC, aspirate a volume of water and
after weighing it, adjust the volume delivered by the pipette (see manufacturer’s instructions
for internal adjustments) until the expected weight equals the volume delivered. This should be
performed using a repeated series of reverse dispensing.
It is imperative that a perfectly calibrated balance is required to calibrate pipettes by the
weighing method and that the balance must have strict and high confidence limits around the
volume required.
The procedure explained is valid for air displacement pipettes. It includes the following steps:
1. Install a new tip on the pipette.
2. Pipette distilled water and empty into the waste container. Repeat at least 5 times in order to
stabilize the humidity of the air inside the pipette.
3. Add water to the weighing receptacle until the level of liquid reaches at least 3 mm.
4. Register the temperature of the water, environmental pressure and relative humidity.
5. Cover the weighing receptacle, if this applies.
6. Register the weight shown on the balance or press tab so that the reading is zero
7. Fill the pipette with water from the storage container and dispense it into the weighing
receptacle expelling all the water. This is done in the same way pipettes are used on a daily
basis technique).
8. Register the new weight detected by the balance.
9. Repeat steps 7 and 8 nine (9) additional times, recording the weight registered by the
balance at the end of each cycle.
Annexure 4.4
National Guidelines on Quality Management Systems in HIV Testing Laboratories165
10. Register the temperature of the liquid inside the weighing receptacle at the end of the tenth
cycle and measure the time elapsed since the measurements started.
11. Evaluate if evaporation has been significant (this is critical when working with pipettes of
very small volumes). If this is the case, an additional period of time [Ta] equal to the time
used during the ten measurements must be allowed to elapse, and when completed, a new
reading has to be carried out.
12. The mass of water lost by evaporation in the additional time [Ta] is divided by the total
number of specimens analyzed (ten). This will give an indication of the average mass of
liquid lost due to evaporation per cycle. This figure must be added to each of the mass
readings.
Calculations - Proceed as follows:
1. Calculate the mass of water dispensed by the pipette in each cycle. Subtract the reading
registered at the end of the previous cycle to the reading registered in the current cycle.
Repeat for all measurements. If appropriate, add the average mass corresponding to the
calculated evaporation per cycle.
2. Convert each mass value to a volume at 20 °C, dividing the mass by
the density of water adjusted to the mentioned temperature.
3. Calculate the average of the volumes calculated instep 2.
(The sum of volumes, divided by the number of
specimens). Apply the adjustments per phenomenon such
as the air pressure onto the mass (flotation). To accomplish
this, multiply each mass by a correction factor [Z].
4. Calculate the standard deviation of the
specimen.
5. Calculate the coefficient of variation.
6. A table containing a summary of the mathematical formulae mentioned is shown next.
Annexure 4.4
V =iD
Mi
n-1
1ΣSD =i=1
X2(X - X )i AV
n
CV(%) x 100XAV
S
Vi
nX =Σ x Z
Vi
nX =Σ x Z
166National Guidelines on Quality Management Systems in HIV Testing Laboratories
Table of mathematical formulae
Source: WHO Maintenance Manual for Laboratory Equipment 2nd Edition
For adjustable devices check volume delivered at several settings.
Acceptance criteria (%Accuracy =+/- 2%, 98%-102% and % CV=<2 %)
The acceptance or rejection processes include.
To check the accuracy of the pipette, calculate the average from 10 readings of weighing and
compare the average to the reference range provided by the manufacturer. For example for
a 100-1000 ml pipette that has been calibrated at the 100 ml level, the average should fall
within 100 ± 8.0 ml
To check the precision of the pipette, calculate the standard deviation (SD) from the 10
readings and compare the SD to the reference SD provided by the manufacture. For
example for a 100-1000 ml pipette that has been calibrated at the 100 ml level, the SD should
be 3.0 or less.
Verify calculated results are within limits
Range Max/Min Accuracy
10 µl + 1.0 µl 10%
100 µl + 10.0 µ l 10%
200 µl + 20.0 µ l 10 %
Decontaminate pipette and scale after use.
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Annexure 4.4
CV(%) x 100XAV
S
n-1
1ΣSD =i=1
X2(X - X )i AV
n
D% =Xnom
X -AV XNom
E = X - s Vn V =iD
Mi
X=average volumeSD=standard deviation
2Z=adjustment factor in (μl/mg)
CV(%)=variation coefficientD(%)=error
Conventions:
National Guidelines on Quality Management Systems in HIV Testing Laboratories167
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If the measurements are acceptable, the pipette should be identified as being appropriate
for use this often is achieved by placing a confirmation sticker on the pipette displaying the
valid calibration period. However, there also must be a written record of the date of
calibration and the results for each pipette.
If the pipette fails calibration (the accuracy and / or the precision are outside the permitted
range) remove from service until appropriate adjustment can be made .The manufacturer
must be consulted.
Annexure 4.4
168National Guidelines on Quality Management Systems in HIV Testing Laboratories
Electronic Balance
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It is characterized as an instrument of high precision functions by comparing known weight
masses with that of a substance of unknown weight. This type of balance generally has a
capacity of up to 200 grams. Analytical balances can weigh ten thousandths of a gram (0.0001 g)
or 100 thousandths of a gram (0.00001 g). In the metrological classification of electronic
balances, only two parameters are of importance:
(i) the maximum load [Max.]
(ii) The value of the digital division [d]
It is necessary to have a set of certified masses. The set is generally composed of simple pieces of
1, 2, 5, 10, 20, and 50 g, 100, 200 and 500 g and fractional pieces of 2, 5, 10, 20 and 50 mg, 100,
200 and 500 mg.
An area free of vibrations is the best environment for a weigh balance (vibration has effect on
balance for measurement 0.01 g or less, place the balance on a vibration free surface). The
surface on which the balance is mounted should be level and balance feet should be adjusted,
using the spirit-level device to show when the balance is level. Temperature fluctuations should
not be large (ideally the ambient temperature should be stable to within ± 3°C. Temperature
fluctuations can cause gradients in the balance mechanism). Air draughts from doors, windows,
and passer-by should be minimized. Magnetic fields should be avoided as they may cause
permanent changes in the response of the balance. Direct sunlight should be avoided.
Operating an electronic analytical balance
Allow the balance to equilibrate with the environment where it is installed.
Allow the balance to warm-up before initiating activities.
Verify that the balance is calibrated.
Make sure the balance is level
Adjust the balance to zero (the pan should be clean and doors shut to avoid air currents)
Tare the weighing container or weigh the empty container
Place the specimen on the weighing pan and read the value for the measurement
Remove the specimen; clean the balance and area around it.
In general, the manufacturer or the specialized installation representative carries out the
maintenance of the balances, according to procedures which vary depending on the type
and model.
Routine maintenance
The balance is characterized as an instrument of high precision. For this reason, the operator is
only responsible for minimal maintenance limited to the following:
Annexure 4.5
National Guidelines on Quality Management Systems in HIV Testing Laboratories169
Daily Activities
Clean the weighing plate so that it is kept free of dust. Cleaning is done by using a piece of
clean cloth which may be dampened with distilled water. If there is a stain, a mild detergent
can be applied. A paintbrush with soft bristles can be used to remove particles or dust
deposited on the weight plate.
Clean the weighing chamber, externally and internally. Verify that the glass is free from dust.
Verify that the adjustment mechanisms on the front door of the weighing chamber works
adequately. Always use a clean, pre-weighed container for weighing (glass container or
weighing paper if possible). Note that plastic can become electromagnetically charged and is
not recommended for weighing powdered or granulated chemicals.
Any spill must be cleaned immediately to avoid corrosion or contamination. Use 70%
ethanol to disinfect the pan of the balance.
Never lubricate a balance unless the manufacturer has expressly indicated it. Any substance
interfering with the mechanism of the balance retards its response or definitely alters the
measurement process.
The OIML (International Organization of Legal Metrology) has defined and classified the mass
standards and test weights used in the calibration of weighing machines. The series of mass
standards are identified in accuracy order (beginning from most accurate), with the letter codes
E1, E2, F1, F2, M1, and M2.The verification procedure of a weighing instrument usually includes
checking of the structure and proper functioning of the device as well as checking resolution,
repeatability, loading curve, zero point and effects of angular loading. A one year verification
period is recommended. Partial verifications, such as repeatability checks, and one-point
checks, are recommended to be performed more frequently zero checks before each weighing.
Any calibration process must be done using standard weights. The standard weights must be
selected based on the balance’s capacity.
Table of standard weights’ use according to the balance’s capacity
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Annexure 4.5
ResolutionCapacity
100 g
Up to 200 g
10 g 1 g 100 mg 10 mg 1 mg 0.1 mg 0.01 mg
- - - M1 M1 F2 F1 F2
170National Guidelines on Quality Management Systems in HIV Testing Laboratories
Table of OIML reference weights classification
Source: WHO Maintenance Manual for Laboratory Equipment 2nd Edition
Annexure 4.5
Class Description ToleranceUncertainty
allowedFrequency ofrecalibration
E1
F1
F2
M1
M2
E2
± 0.5 ppm per kg
± 1.5 ppm per kg
± 5 ppm per kg
± 15 ppm per kg
± 50 ppm per kg
± 200 ppm per kg
± 1/3 of the tolerance
± 1/3 of the tolerance
± 1/5 of the tolerance
± 1/5 of the tolerance
± 1/5 of the tolerance
± 1/5 of the tolerance
2 years
1 year
2 years
1 year
1 year
Stainless steel weights without marks or adjusting cavity.
Stainless steel weights without marks or adjusting cavity.
Stainless steel weights with screw button for protecting the adjusting cavity
Bronze plated weights.
Bronze weights (that do not corrode or become stained) or of cast iron weights with a high quality paint finish
Bronze or cast iron weights (commercial weights).
1 year
National Guidelines on Quality Management Systems in HIV Testing Laboratories171
ELISA System
Photometer instruments such as ELISA readers require calibration to ensure accuracy and
linearity of their readings. This is usually accomplished using special calibration plates, available
from the manufacturer. The plates consist of different wells, each capable of producing a
different O.D. reading. Observed readings are compared to theoretical values and evaluated
using confidence limits. Likewise, automated diluters must be calibrated. This is usually
accomplished by diluting a standard color solution and reading O.D. spectrophotometrically.
Results must be within 10% of the expected limits. The manufacturer of any automated
instrument can be contacted for details of these procedures. The annual maintenance contract
should include the above mentioned check-ups and laboratory in charge should ensure the
implementations.
Function checks
It is essential that laboratory personnel know and document that all equipment is in good
condition each day of use. This can be accomplished by undertaking function checks, often
referred to as calibration and validation.
Calibration: that process which is applied quantitative measuring or metering of equipment to
assure its accurate operation throughout its measuring limits.
Validation: the steps taken to confirm and record the proper operation of equipment at a given
point of time in the range in which tests are performed.
ELISA Reader
Regular maintenance of the ELISA machine should be carried out according to the
manufacturer’s instructions and may vary between brands. The machine itself should not be
opened. The filters must be protected from moisture and fungal growth. Keep silica gel packet in
the filter box.
Plate washer
Plate washers are critical in ELISA assay performance. The washer works on a simple principle
and comprises of wash fluid, waste fluid reservoirs, pressure and vacuum pumps, a dispense
manifold and a plate carrier.
The wash fluid is pressurized and a valve opens and allows the fluid through a manifold and into
assay micro wells. The waste fluid under vacuum is aspirated back through the manifold to the
waste container. A number of cycles of dispense and aspiration comprises the washing of a
plate. At the end of the wash procedure the wells are empty of the fluid.
Annexure 4.6
171National Guidelines on Quality Management Systems in HIV Testing Laboratories
After use care
Fill the rinse bottle with about 500 ml of distilled water
Dispose of the unused wash buffer. Rinse with distilled water, a couple of times and leave
about 500ml in the wash bottle. Fix the cap tightly.
After using the washer switch off power.
Microliter plate reader
Maintenance: The routine maintenance that is required for a microliter plate reader is detailed
in the operating manuals that are provided by the manufacturer. In general, maintenance
should include cleaning of the optical system and the plate carrier system and monitoring
lamps, fuses and paper printer rolls, lubrication of moving parts may be indicated. It is always a
good idea to have extra excitation light bulbs, printer, paper etc. for when they are needed. Each
reader’s operational manual should be reviewed and the instruction followed to keep the
instrument maintained properly.
Verification: Between calibrations, the reader can be verified that it is working appropriately by
testing a verification plate that can be purchased from appropriate suppliers. These plates are
used to verify the correct performance of microliter plate readers with respect to their
measurements. Generally, verification plates are composed of neutral density filters with
nominal absorbance’s that can be used to calibrate the reader at a number of wavelengths.
Verification plates should be traceable to international reference material and require
recalibration at least every 24 month by an accredited calibrations laboratory, sometimes, these
verifications plates may be supplied with the reader, but more often must be purchased or
provided by the manufacturer or servicing organization.
Calibration: Microliter plate readers should be calibrated annually to check
1) Alignment
2) Accuracy
3) Precision
4) Turnaround
5) Linearity
}
}
}
Annexure 4.6
National Guidelines on Quality Management Systems in HIV Testing Laboratories173
Common Supplies in a HIV Testing Laboratory
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
PPE
Gloves
Latex gloves
Heavy duty gloves
Plastic gloves
Cryo gloves
Disposable Masks
Laboratory Coats
Disposable Aprons
Covered footwear
Safety goggles
Consumables
Micropipette tips
Evacuated blood collection tube (eg. BD Vacutainer).
Evacuated blood collection tube needles
Pronto holder
Storage vials
Vial box
Filter paper
Color coded waste disposal bags
Color coded waste disposal containers
Sharps container
Absorbent cotton
Tourniquet
Equipment
Needle destroyer
Centrifuge
Micropipettes
Incubator
ELISA Washer
ELISA Reader
Refrigerator
Deep freezer
Safety related equipment
Eye wash station/bottle
Annexure 5.1
174National Guidelines on Quality Management Systems in HIV Testing Laboratories
}
}
}
}
}
}
}
}
}
Spill kits
First Aid kit
PEP
Fire Extinguisher
Reagents
Sodium hypochlorite
Distilled Water
Spirit
Alcohol Hand Rub
Phenolic disinfectants
Annexure 5.1
National Guidelines on Quality Management Systems in HIV Testing Laboratories175
Annexure 5.2
Sto
ck r
egi
ste
r fo
r IC
TC
Nam
e o
f th
e Te
sts/
Co
nsu
mab
le:
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
...
Dat
eO
pen
ing
sto
ck
Nu
mb
er o
f te
sts
rece
ived
th
is
mo
nth
Bat
ch/L
ot
nu
mb
erE
xpir
y d
ate
Nu
mb
er
of
test
p
erfo
rmed
Nu
mb
er
of
con
tro
lsW
asta
ge
(if
any)
Clo
sin
gst
ock
Nu
mb
erre
qu
este
d
Dat
e o
f p
laci
ng
req
ues
tS
ign
atu
re
176National Guidelines on Quality Management Systems in HIV Testing Laboratories
Receiving Inspection Checklist
}
}
Consignment: ..............................................................................................................................
Receipt Inspection Performed By: ...............................................................................................
Receipt Inspection Date: ........................................... Invoice Number: ......................................
Consignment Arrival Date: ..........................................................................................................
Attach a copy of the invoice and order request with checklist.
The order is complete and acceptable Y N
If Not accepted, fill in the following:
Annexure:5.3
The correct items were received
No items are missing
Quantity of items received matches quantity indicated on invoice
Quantity of items received matches quantity requested by laboratory
Manufacturer’s expiry date is acceptable
Items transported at the correct shipping temperature
Cold packs are cold (refrigerated items) or frozen or partially thawed (frozen items).
Seal of the consignment is intact
Items are not crushed, broken or leaking
Any broken/ leaking item has been handled safely and disposed of properly
Inventory records are updated
Expiry Date written in bold on consignment (where applicable)
A copy of the invoice and order request is retained in the laboratory
Shipment is unpacked and properly integrated with existing inventory
NoYes
Wrong Item
Wrong Quantity
Item Not Requested by Laboratory
Damaged Item
Close to Expiry date
Temperature of receipt not acceptable
Tick appropriatelyReason for Non acceptance
National Guidelines on Quality Management Systems in HIV Testing Laboratories177
Formula for dilution of Stock solution of Sodium Hypochlorite to working concentration of Sodium
Hypochlorite
Water Required = Working solution Volume Required − Amount Stock Required
Preparation of different concentration of Sodium Hypochlorite Solution.
*parts of stock solution: parts of water
0.1% Working Solution from 4% Stock Solution of Sodium Hypochlorite
0.5% Working Solution from 4% Stock Solution of Sodium Hypochlorite
Annexure 7.1
Amount of stock Required
Working solution Volume Required
Working Conc. Required
Stock Conc.= X
Stock/commercially available Sodium HypochloriteRequired Strength (Available solution
of chlorine) 4 %(40g/L); dilute 5 %(50g/L); dilute 6%(60g/L); dilute
0.1%( 1 g/L)
0.5%( 5 g/L)
1%(10 g/L)
1:39*
1:7
1:3
1:49
1:9
1:4
1:59
1:11
1:5
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
218.75
437.5 ml
875 ml
1750 ml
Quantity of
Sodium Hypochlorite (ml)
31.25 ml
62.5 ml
125 ml
250 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of Water
243.75 ml
487.5 ml
975 ml
1950 ml
Quantity of Sodium
Hypochlorite (ml)
6.25 ml
12.5 ml
25 ml
50 ml
178National Guidelines on Quality Management Systems in HIV Testing Laboratories
1% Working Solution from 4% Stock Solution of Sodium Hypochlorite
NOTE: Kindly see the concentration of commercially available Stock solution before Dilution
0.1% Working Solution from 5% Stock Solution of Sodium Hypochlorite
0.5% Working Solution from 5% Stock Solution of Sodium Hypochlorite
1% Working Solution from 5% Stock Solution of Sodium Hypochlorite
NOTE: Kindly see the concentration of commercially available Stock solution before Dilution
Annexure 7.1
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
187.5 ml
375 ml
750 ml
1500 ml
Quantity of
Sodium Hypochlorite (ml)
62.5 ml
125 ml
250 ml
500 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
245 ml
490 ml
980 ml
1960 ml
Quantity of
Sodium Hypochlorite (ml)
5 ml
10 ml
20 ml
40 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
225 ml
450 ml
900 ml
1800 ml
Quantity of
Sodium Hypochlorite (ml)
25 ml
50 ml
100 ml
200 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
200 ml
400 ml
800 ml
1600 ml
Quantity of
Sodium Hypochlorite (ml)
50 ml
100 ml
200 ml
400 ml
National Guidelines on Quality Management Systems in HIV Testing Laboratories179
0.1% Working Solution from 6% Stock Solution of Sodium Hypochlorite
0.5% Working Solution from 6% Stock Solution of Sodium Hypochlorite
1% Working Solution from 6% Stock Solution of Sodium Hypochlorite
NOTE: Kindly see the concentration of commercially available Stock solution before Dilution
Annexure 7.1
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
245.8 ml
491.7
983.3
1966.7 ml
Quantity of
Sodium Hypochlorite (ml)
4.2 ml
8.3 ml
16.7 ml
33.3 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
229.2 ml
458.3 ml
916.7 ml
1833.3 ml
Quantity of
Sodium Hypochlorite (ml)
20.8 ml
41.7 ml
83.3 ml
166.7 ml
Required Volume of
Working Solution(ml)
250 ml
500 ml
1000 ml
2000 ml
Quantity of
Water
208.3 ml
416.7 ml
833.3 ml
1666.7 ml
Quantity of
Sodium Hypochlorite (ml)
41.7 ml
83.3 ml
166.7 ml
333.3 ml
180National Guidelines on Quality Management Systems in HIV Testing Laboratories
Specimen Laboratory Safety AuditLaboratory Safety Audit
Date: .....................................
Instructions: .................................................................................................................................
.....................................................................................................................................................
Indicate Y (Yes), N (No), or N/A (not applicable)
I General (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Design of the lab and workflow patterns minimise the chance of accidents.
2. Lab has adequate space, counters, shelves and storage to prevent accidents.
3. Lab is properly ventilate and lit up
4. Staff does not eat, drink, smoke or apply make up in the laboratory.
5. Storage of foods or drinks in lab refrigerators/freezers prohibited, signage provided on each,
inspected periodically for compliance
6. Biosafety hoods if needed available
7. Are biological safety cabinets certified annually?
8. Has a designated Safety Officer been appointed to oversee laboratory safety issues?
9. Safety manual with a safety and health policy available reviewed and signed by all lab staff.
10. Do employees receive safety training at the time of hire and annually thereafter?
11. Annual review of staff for compliance with all safety regulations, updated written
information received and records of same
12. Periodic inspections conducted to ensure compliance with all safety recommendations
( including fire drills ) and findings discussed with all employees
13. Is there a current listing posted of emergency contacts with phone numbers?
14. Are blood-borne pathogen and chemical spill kits maintained in accessible locations?
15. Are first Aid kits located in accessible locations
16. Is there signage indicating the location of these first aid and spill kits?
17. Safety equipment checked periodically and maintained in good working condition and
records kept
18. Adequate safety information displayed in the laboratory
19. Are noise levels below 75 decibels?
20. Do employees understand what to do if they sustain an exposure to blood and body fluids?
21. Is annual safety training provided to all employees and attendance documented?
22. Have all employees been offered hepatitis B vaccine and has this information been
documented?
23. Are biological and chemical fume hoods certified annually?
24. When hoods are in use, are supplies and equipment kept at least four inches away from the
hood face?
25. Adequate PEP signage and PEP available round the clock (immediate consultation and treatment)
Annexure 7.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories181
26. Transport of specimens in compliance with safety regulations
II HOUSEKEEPING (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Designated “clean ” and “dirty ” areas in the laboratory
2. Individuals trained in good cleaning practices in all work areas
3. Are all work areas, benches, floors, shelves and storage areas maintained in a neat and
orderly manner? (free of clutter)
4. Are all work surfaces decontaminated with an appropriate disinfectant at the end of each
work shift and when grossly contaminated with blood and body fluids?
5. Sinks, faucets, handles, telephones and other clean areas are cleaned daily
6. Is broken glass picked up by tongs or forceps and disposed of in an appropriate container?
7. Do spill clean-up procedures include soaking up the spill with absorbent material such as
paper towels, decontaminating the area with an appropriate disinfectant, and disposing of
the contaminated materials appropriately?
8. Are heavy objects stored on lower shelving?
9. Are aisles free of trash and other debris?
10. Are biohazard receptacles for blood or other potential infectious materials separate from
regular trash?
11. Are these containers in good condition?
12. Is trash removed at least daily?
13. Are main access hall corridors at least 48 inches wide?
14. Are floors wet mopped daily?
15. Are floors cleaned and wax stripped regularly to prevent paraffin build-up?
16. Are certain computers and telephones designated as clean/dirty?
17. Have you looked in each and every cabinet for unlabelled containers and labelled them correctly?
18. Are loads in centrifuges balanced?
19. Are tops of centrifuges locked down when in use?
20. Is chipped or cracked glassware disposed of in a rigid container?
21. Is the refrigerator for food clean and defrosted?
22. Is the microwave oven clean?
23. Are workstations disinfected with an appropriate disinfectant at the end of each shift?
III PERSONAL PROTECTIVE EQUIPMENT (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Has a personal protective equipment assessment been completed and documented?
2. Staff trained on correct use and removal of PPE
3. Staff always use PPE and safety equipment provided
4. Do employees wear safety glasses with side shields (or goggles) in case of splash hazards?
5. Do employees wear nonslip type shoes , Do shoes cover the entire foot
6. Do employees wear lab coats or cover gowns with long sleeves, knitted cuffs, and closed in
the front while in the work area?
Annexure 7.2
182National Guidelines on Quality Management Systems in HIV Testing Laboratories
7. If these coats/gowns are reusable, are they laundered by a hospital or outside laundry service?
8. Do employees remove their lab coats/gowns when leaving the laboratory environment?
9. Do employees wear appropriate gloves when performing laboratory testing or phlebotomy?
10. Are gloves available in appropriate sizes for all workers at risk for exposure?
11. Are gloves removed when leaving the laboratory environment?
IV DOCUMENTATION (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Do you have copies of the Safety Manual
2. Are safety training records on all employees kept five years?
3. Are medical records on all employees kept for the duration of employment
4. Records of accidents/incidents , their evaluation and CAPA
V BLOOD-BORNE PATHOGENS (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Is the blood-borne pathogen written program available, current, and has it been reviewed
within the last year?
2. Are employees trained and understand what Standard Precautions and follow them
(formerly Universal Precautions/Body Substance Isolation) means?
3. Are lab coats and gloves removed before leaving the work area?
4. Are hands washed before leaving the work area?
5. Are sharps containers available and used?
6. Are sharps containers disposed of when three-fourths full?
7. Is mouth pipetting prohibited?
8. Do employees store food in a refrigerator specifically for food and not for specimens?
9. Is this refrigerator labelled “For Food Only?”
10. Do employees refrain from eating, drinking, smoking, applying cosmetics and lip balm, or
manipulating contact lenses in the work area?
11. Have employees responsible for shipping diagnostic and infectious specimens been trained
in accordance with the IATA regulations?
12. Hazardous material always carried in appropriate safety carriers
INFECTIOUS MATERIALS (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Are specimens received in a safe condition?
2. Are records kept of incoming materials?
3. Are specimens unpacked in biological safety cabinets with care and attention to possible
breakage and leakage? breakage and leakage?
4. Are gloves and other protective clothing worn for unpacking specimens?
5. Are personnel trained to ship infectious substances according to current national and/or
international regulations?
6. Are work benches kept clean and tidy?
7. Are discarded infectious materials removed daily or more often and disposed of safely?
Annexure 7.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories183
8. Are all members of the staff aware of procedures for dealing with breakage and spillage of
cultures and infectious materials?
9. Is the performance of sterilizers checked by the appropriate chemical, physical and
biological indicators?
10. Is there a procedure for decontaminating centrifuges regularly?
11. Are sealed buckets provided for centrifuges?
12. Are appropriate disinfectants being used? Are they used correctly?
VI CHEMICAL HYGIENE (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Is the Chemical Hygiene Plan available, current, and reviewed within the last year?
2. Do employees know where the Material Safety Data Sheets (MSDS) are located?
3. Do employees know how to use the MSDS to look up spills and first aid for a chemical they use?
4. Are old MSDS archived for 5 years
5. Has the chemical inventory been performed and updated in the last 12 months?
6. Is there a list of carcinogens, mutagens, and teratogens?
7. Has the chemical risk assessment been updated in the last year?
8. Are all manufactured chemical containers labelled with the appropriate chemical identity
and hazard warning information?
9. Do transfer containers of chemicals properly labelled with an HMIS label or plain label with
the name of the chemical, concentration, route of entry, health hazard, physical hazard,
target organs affected, lab name, lot number, and expiration date?
10. Are incompatible chemicals effectively separated when stored or handled? (E.g. acids and
bases stored separately; fuels and oxidisers stored separately. Reference MSDS)
11. Are flammable or toxic chemicals kept in closed containers when not in use?
12. Are chemicals stored away from heat, sunlight, or reactive substances?
13. Are chemicals not currently being used placed in the appropriate storage cabinet?
14. Are working supplies of chemicals limited to one gallon per 100 square feet?
15. Are Class I flammable liquids that are refrigerated stored in devices listed as approved for
Class I storage?
16. Are peroxide formers used only in approved laboratory hoods?
17. Do employees understand how to properly store chemicals?
18. Is environmental monitoring performed and documented where appropriate?
19. Are chemical spill kits/materials maintained and available for use?
20. Are chemical spill kits identified by proper signage?
21. Have employees been trained in spill clean-up procedures including mercury and
formaldehyde, if applicable?
Laboratory equipment (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Is all equipment certified safe for use?
2. Are procedures available for decontaminating equipment regularly and prior to
Annexure 7.2
184National Guidelines on Quality Management Systems in HIV Testing Laboratories
maintenance?
3. Are biological safety cabinets and fume cupboards regularly tested and serviced?
4. Are autoclaves and other pressure vessels regularly inspected?
5. Are centrifuge buckets and rotors regularly inspected?
6. Are HEPA filters regularly changed?
7. Are pipettes used instead of hypodermic needles?
8. Is cracked and chipped glassware always discarded and not reused?
9. Are there safe receptacles for broken glass?
10. Are plastics used instead of glass where feasible?
11. Are sharps disposal containers available and being used?
VII COMPRESSED GAS (Indicate Y (Yes), N (No), or N/A (not applicable))
1. All electrical equipment checked for proper operation by appropriate person
2. Are all compressed gas cylinders chained to the wall or otherwise secured in a nontip base?
3. Are empty gas cylinders marked with the word “EMPTY?”
4. Are cylinders transported via hand truck or other stabilizing device?
5. Are cylinders legibly marked to clearly identify the gas in the cylinders?
6. Are cylinders equipped with a pressure regulator designed and marked for its maximum
pressure?
7. Is the regulator system equipped with two gauges to show both the cylinder pressure and
the outlet pressure?
8. Do cylinders have a manual shutoff valve?
9. Are valve protectors placed on cylinders when they are not in use or connected for use?
10. Is smoking prohibited near oxygen storage areas?
VIII ELECTRICAL (Indicate Y (Yes), N (No), or N/A (not applicable))
1. All electrical equipment checked for proper operation by an appropriate person
2. Is electrical equipment grounded with the use of three pronged plugs?
3. Electrical outlets and connections meet requirements and have been inspected annually for
proper operation.
4. Are electrical cords free of any frayed edges?
5. Are extension cords prohibited from use?
6. Are multi-plug adapters prohibited?
7. Are receptacles properly wired?
8. Are electrical outlets located near wet locations, such as sinks, protected by a ground-fault
circuit interrupter (GFCI)?
9. Are heat sources and liquid chemicals kept away from outlets, cords, and equipment as
much as possible?
10. Are light fixtures in working order?
11. Have employees been trained in how to handle shock injuries?
Annexure 7.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories185
12. Are electrical panels kept cleared within three feet in front of breaker panels?
13. Are electrical circuit breakers and panels labelled with a current listing of equipment
powered by each unit?
IX EYEWASH/SHOWER (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Are eyewash stations located within 100 feet of where hazardous chemicals are used?
2. Is there a sign indicating the location of the eyewash above the station?
3. Are the protective caps in place on the eyewash?
4. Is the eyewash in good working condition?
5. Are the eyewash stations checked weekly and the eye covers disinfected with 1% NaOCl?
6. Are eyewash preventive maintenance and routine checks documented?
7. Is there a sign indicating the location of the safety shower above the station?
8. Are the safety showers checked monthly?
9. Are floor drains near showers flushed monthly?
10. Are all safety checks to showers documented?
X FIRE (Indicate Y (Yes), N (No), or N/A (not applicable))
1. There is an emergency exit for fire (extra door/window)
2. Is there a fire alarm pull station located near the laboratory?
3. Can the fire alarm be heard from inside the laboratory?
4. Do fire exits have an exit sign that is illuminated by a reliable light source?
5. Are stairwells and emergency exits accessible and free of obstructions?
6. Do all employees know where the fire extinguishers are located?
7. Are all fire extinguishers easily accessible and not blocked?
8. Have all employees received fire extinguisher training including the opportunity to actually
use the extinguisher in a real or simulated practice?
9. Do employees understand what type of extinguisher is needed (A, B, or C) for each class of fire?
10. Have fire extinguishers been serviced within the past year?
11. Do employees know what the acronyms RACE and PASS stand for?
12. Have quarterly fire drills been completed and documented?
13. Has each employee performed at least one full evacuation to the triage area annually?
14. Are evacuation routes posted in visible locations?
15. Does staffs know how to respond to a fire drill and what evacuation route to use?
16. Do staff know the procedure for the evacuation of disabled employees?
XI RADIATION (if applicable)
1. What type of radiation safety license does the laboratory have?
2. Who maintains the radiation badge records?
3. Has everyone involved with radiation testing been successfully trained annually on radiation
safety
Annexure 7.2
186National Guidelines on Quality Management Systems in HIV Testing Laboratories
Xii WASTE MANAGEMENT (Indicate Y (Yes), N (No), or N/A (not applicable))
1. Is all waste disposed of properly according to national, state and local authorities?
2. Is there a waste management plan?
3. Staff trained in proper waste disposal practices.
4. PPE and immunisation of staff who handle and transport waste
5. Are there documented cradle-to-grave protocols in place where appropriate?
6. Have employees been trained to waste segregation and as to what can be discharged down
the sewer?
7. Does the facility have a discharge permit or letter of acknowledgment from the wastewater
treatment facility?
8. Is the laboratory discharge to the sewer routinely monitored?
9. Is waste stored less than 1 day?
10. Are incompatible wastes and/or materials separated or protected by physical means such as
a wall or a cabinet?
11. Are floor drains covered to prevent a spill from entering a drain?
12. Have employees responsible for shipping hazardous waste been trained in accordance with
the Department of Transportation (DOT) regulations?
13. Are waste management records (manifests, waste analysis results, inspection records,
training records) retained on-site for at least five years?
14. Is there a recycling program in place that includes paper, plastic, glass, cans, alcohol,
formaldehyde, solvents, etc.?
Annexure 7.2
National Guidelines on Quality Management Systems in HIV Testing Laboratories187
NACO Experts
Dr. Naresh Goel, DDG Lab Services
Dr. A. S. Rathore, DDG CST Division
Dr. Sunil Khaprde, DDG Basic Services and STI/RTI Sevices
Dr. Ashok Kumar, Former DDG Basic Services and STI/RTI Sevices
Dr. B. B. Rewari, National Programme Officer (ART)
Dr. Veenita Sinha Dar, Programme officer, Lab Services
Ms. Smita Mishra, Technical Officer (QC) Lab Serveices
Dr. Shikha Handa, Technical Officer Lab Services
CDC Experts
Dr. Pauline Harvey, Director, DGHA, CDC, India
Dr. Sunita Upadhyaya, Sr. Public Health Specialist (Laboratory Advisor), DGHA, CDC, India
Dr. Archana Beri, Public Health Specialist (Laboratory Advisor), DGHA, CDC, India
Technical Experts
Dr. R. S. Paranjape, Director and Scientist G, National AIDS Research Institute, Pune
Dr. R. L. Ichhpujani Public Health Surveillance and Laboratory Advisor CDC/GDD (Group Coordinator) and Former Additional Director and Head NRL NCDC, Delhi
Dr. Anita Desai Additional Professor, Dept of Neurovirology and NRL In charge, NIMHANS, Bangalore
Dr. Shrikala Baliga Prof and Head Dept of Microbiology and SRL In charge KMC Mangalore
Dr. Rohit Chawla Assistant Prof. MAMC, New Delhi
Dr. Sujata Baveja Prof. and Head Dept of Microbiology and SRL In charge LTMMC and LTMGH Sion, Mumbai
Dr. P. Balakrishnan Associate Professor/ Lab Chief, YRG Center for AIDS Research and Education, VHS, Taramani, Chennai
Dr. M. K. Saha NRL Incharge, NICED, Kolkata
Brig. A. Nagendra (Retired) Professor and HOD, Dept. of Microbiology, Dr Ulhas Patil Medical College, Jalgaon, Maharashtra
Dr. Rajesh Kannangai Professor and NRL In-charge, Department of Clinical Virology, Christian Medical College, Vellore.
Dr. Sunil Arora Professor, Department of Immunopathology and SRL In charge, PGIMER, Chandigarh
Dr. Jyothilakshmi Associate Professor, Gandhi Medical College, Secunderabad, Telangana
Dr. Sandhya Kabra Director Quality Assurance, FSSAI, New Delhi and Former ADG Laboratory Services NACO New Delh
Dr. Jayesh Dale, Team Leader-RTS, PCI India
Dr. Rekha Jain, RTS-West, PCI India
Contributors